Poration



Patented Mar. 15, 1927.

UNITED STATES PATENT OFFICE.

WALLACE I. STIMPSON, OF HOIEDALE, 'MASSACHUSETTS, ASSIGNOR T0 DRAPERCOR- PORATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

LOOM TEMPLE ROLL.

Application filed August 14, 1926.

This invention relates to the construction of the pin roll employed inloom temples.

The object of the invention is to provide a temple roll of the pin typeso constructed that the roll when functioning shall have a sufficienthold upon the fabric to maintain the fabric stretched and up to widthwithout in any way injuring or marring the fabric. Thus the roll isadapted for use with a wide variety of fabrics including those of a fineor delicate nature and fabrics composed wholly or in part of artificialsilk.

The object of the invention is further to provide such a temple roll inwhich the pin points shall project sufficiently to engage the fabricwhen pressed against the roll periphery and without injuring or marringthe fabric.

The object of the invention is further to provide such a temple roll inwhich the pins may be inserted by the usual inserting tool withoutinjury to the roll or the pin points and when desired, with the pinpoints projecting but slightly beyond the roll periphcry.

The object of the invention is further to provide a temple roll with thepin points projecting slightly, but sufficiently to engage the fabric,and with ribs also engaging the fabric and thus serving to assist thepin points to hold the fabric up to width.

These and other objects and features of the invention will appear morefully from the accompanying description and drawings and will beparticularly pointed out in the claims.

In the drawings:

Fig. 1 is a top plan view partially broken away of an ordinary form oftemple in position adjacent the fell of the fabric in the weavingoperation and having a roll constructed in accordance with the preferredform of the present invention.

Fig. 2 is a front elevation on an enlarged scale of the end of the rollshown in Fig. l and a portion of the fabric engaged thereby shown incross section.

Fig. 3 is a view in transverse section on an enlarged scale with thesection of the roll taken centrally of one of the ribs.

Fig. at is a view similar to Fig. 3 with the section of the roll takencentrally of one of the grooves.

Serial No. 129,122.

Fig. 5 is a detail on an enlarged scale illustrating one of the pins andthe lower end of an inserting tool.

A roll embodying the present invention is adapted for use in a widevariety of temples and may accordingly be made of different dimensionsand supported in different ways in the temple. In Fig. 1 an ordinaryform of temple, such, for example, as shown in the patent to Stimpson,No. 1,366,03 granted January 18, 1921, is illustrated as adapted for theright-hand side of a loom. Such a temple comprises a shank 1 having alaterally extending pod 2 and cap 3 between which the fabric l passesunderneath the roll mounted upon journal pins, one of which, 5, is shownmounted in the temple head 6 and the other of which, not shown, iscarried by the broken away portion of the cap.

The temple roll may be made of any suitable material, but is usually andpreferably made of wood which has long been used for that purpose.

This temple roll 7 is of cylindrical shape and of a length and diameterdepending upon the temple with which it is to be used. It is providedwith a central axial bore 8 by which it is journalled on the supportingpin or plns.

In this invention the periphery of the roll is formed with alternatingribs and grooves. Preferably these ribs and grooves extend helicallyabout the roll and, in the form illustrated as a preferred embodiment ofthe invention, the ribs 9 present one continuous helix and theintermediate grooves 10 another continuous helix.

The helical angle of the ribs and grooves may vary, but preferablyshould be such as to prevent the pins, when spaced to the desiredextent, from tracking and thus successively separating adjacent warpthreads.

The pins are usually of steel presenting cylindrical shanks 11 andconical points 12. They are inserted in the roll substantially radiallythereof, but inclined slightly with respect to the longitudinal axis ina direction pointing away from the center of the loom. The outer elementof each conical point stanc s preferably vertical and parallel with theend of the roll so that the point will enter and leave the cloth freely.These pins are usually inserted, in holes drilled in the roll, by meansof an inserting tool. T he lower end 18 of such a tool fitting theconical pointed end f the pin is shown in Fig. 5.

In this inveutionthe width of the grooves 10 is determined by twofactors. First, the width must be sulliciently greater than the diameterof the pin sh vnit en'iployed to enable the ribs 9 at each side of thegroove to engage the fabric independently of the pins. This will beunderstood from Fig. 2, where the fabric 4- is shown stretcl'ied l "2against the periphery of the roll and it will be seen that the ribsslightly indent the fabric and thus have a holding engagement on thefabric. Second, the width of the grooves must be such as to enable thenose or end of the insert ig tool 13 to enter the groove and thus embedlhe pin in the roll with the base of the conical point substantiallycentral of the groove and with the pin point projecting accurately tothe extent required to take hold of the fabric. The depth of the grooveis governed by the same factors and is usually at the central portion,slightly less than the projection of the pin points.

Thus the pin, firmly gripped by the inserting tool, is readily forcedinto the roll without danger of injuring the roll and the conical pointleft projecting from the bottom of the groove with the extreme pointprojecting the amount necessary properly to hold the fabric being woven.

lVit-h this construction the pin points may be arranged to engage thefabricsufticiently to catch and holdit and without damaging or marringthe fabric. At the same time an additional function is secured in thatthe ribs act independently of the pins on the fabric thus assisting thepins in holding the fabric stretched and up to the desired width.

The net bodily forward movement of the cloth with respect to the templeroll. at each cycle of movement of the la is very small, being only thewidth of a single pick of filli-ng although the total rolling movementof the roll forward and back on the fabric at each pick may besubstantial.

T he helical ribs and grooves together ith the pin points or teeth,following the usual custom in which the pins or teeth are set in templerolls helically are arranged with the helices of the ribs, grooves andlines of pin points extending in a right handed direct-ion for the rollemployed at one side of the loom and in a left handed direction for theroll employed at the other side of the loom and this arrangement isreversed where the rabric runs over the roll from the arrangement wherethe fabric runs under the roll.

The fabric, being under considerable tension in the direction of itslength as well as in the direction of its width, sinks somewhat into thegrooves and thus engages substantial segments of the edges of the ribs.This engagement is further accentuated due to the curvilinear path ofthe fabric about the roll. Thus the ribs act to hold the fabricstretched laterally. So also this position of the fabric in engagementwith the roll embodying the invention controls to some extent theposition of the extreme points of the pins with respect to the roll perphery and enables the pins, under some conditions, to be set with theextreme points projecting such an amount as will best hold the fabricwithout injury.

7 There is thus formed a temple roll which may be economically andefficiently manir factured and which may readily be applied to any typeof temple en'iploying a roll and which is capable of use in connectionwith a wide variety of fabrics.

The pin points, when thus arranged in connection with the ribs andgrooves, in accordance with the principles of this invention, cause theroll surface to be peculiarly suited to fine and delicate fabrics, as,for example, fabrics made wholly .or in part of silk or artificial silk.The points of the pins may be caused to project just sufficiently togive a slight hold on the fabric of a character that will not injure orcatch the fibres or mar the fabric, but which, in conjunction with theindependent action of the ribs on the fabric is suflicient to performthe functions required of a temple roll. At the same time the roll is ofsuch a character that it is readily manufactured by the processes andmachines long employed in the manufacture of temple rolls wherein theroll cylinder is of wood and the pins are pointed and of steel.

Having thus described the invention, what is claimed as new, and desiredto be secured by Letters Patent, is:

1. A loom temple roll, the periphery of which presents alternating ribsand grooves and pointed pins embedded radially in the roll and spacedcentrally along the grooves with the points projecting sufficiently toengage the fabric when pressed against the roll periphery, the groovesbeing of a width sufficiently greater than the diameter of the pinshanks to enable the ribs to engage the fabric independently of the pinpoints whereby, when the roll is functioning, both the pin points andthe ribs act to hold the fabric.

2. A loom temple roll having the construction defined in claim 1 inwhich the said ribs and grooves extend helically about the roll.

A loom temple roll, the periphery of which presents alternating ribs andgrooves and pointed pins embedded radially in the roll and spacedcentrally along the grooves with the points projecting slightly beyondthe ribs, the grooves being of a width substantially greater than thediameter of the pin shanks and of a depth slightly less than the lengthof the pin points to enable the ribs to engage the fabric independentlyof the pin points whereby, When the roll is functioning, both the pinpoints and the ribs act to hold the fabric.

4. A loom temple roll having the construction defined in claim 3 inwhich the said ribs and grooves extend helica-lly about the roll.

5. A Wooden loom temple roll in which pointed pins are embedded radiallyby means of an inserting tool, the nose of Which grips the pin point,the periphery of which roll presents alternating helical ribs andgrooves, the grooves being of a Width sufiicient to receive the nose ofthe setting tool and of a depth slightly less than the length of the pinpoints whereby the pins may be embedded radially in the roll and spacedcentrally along the grooves and the projection of the pin points may beaccurately secured to the extent required for engagement with the fabricwith the ribs spaced sufficiently from the pin points to engage thefabric independently thereof.

In testimony whereof, I have signed my name to this specification.

WALLACE I. STIMPSON.

